Interesting! That’s a bit surprising to me. In Japan they have the yellow tiles with bumps near the center of most city sidewalks that I always assumed was a kind of lane system. If it’s not to create lanes, what are those tiles for?
This. As a driver and a long-term resident in Tokyo, I try to stay to the left as a pedestrian, but I estimate the odds of the other party doing the same are 50/50.
They come in contact with it though, from those driving around them. Then there are other customs, like standing on the left side of escalators (except for Osaka, where it used to be the right side, but now it's mostly the side the line is already on). From my personal experience people in the major cities seem to prefer dodging to the left, all things being equal.